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environmental hazards

Hui Di, Xingpeng Liu, Jiquan Zhang, Zhijun Tong, Meichen Ji
Water environmental risk is the probability of the occurrence of events caused by human activities or the interaction of human activities and natural processes that will damage a water environment. This study proposed a water environmental risk index (WERI) model to assess the water environmental risk in the Yinma River Basin based on hazards, exposure, vulnerability, and regional management ability indicators in a water environment. The data for each indicator were gathered from 2000, 2005, 2010, and 2015 to assess the spatial and temporal variations in water environmental risk using particle swarm optimization and the analytic hierarchy process (PSO-AHP) method...
March 15, 2018: International Journal of Environmental Research and Public Health
Alexander Golberg, Alexander Liberzon, Edward Vitkin, Zohar Yakhini
Displacing fossil fuels and their derivatives with renewables, and increasing sustainable food production are among the major challenges facing the world in the coming decades. A possible, sustainable direction for addressing this challenge is the production of biomass and the conversion of this biomass to the required products through a complex system coined biorefinery. Terrestrial biomass and microalgae are possible sources; however, concerns over net energy balance, potable water use, environmental hazards, and uncertainty in the processing technologies raise questions regarding their actual potential to meet the anticipated food, feed, and energy challenges in a sustainable way...
March 15, 2018: Methods in Molecular Biology
Kate Guastaferro, Betty S Lai, Katy Miller, Jenelle Shanley Chatham, Daniel J Whitaker, Shannon Self-Brown, Allison Kemner, John R Lutzker
Child maltreatment is a significant public health problem best addressed through evidence-based parent-support programs. There is a wide range of programs with different strengths offering a variety of options for families. Choosing one single evidence-based program often limits the range of services available to meet the unique needs of families. This paper presents findings from a study to examine the systematic braiding of two evidence-based programs, Parents as Teachers and SafeCare at Home (PATSCH), with the goal to provide a more robust intervention for higher risk families...
February 2018: Journal of Child and Family Studies
Rashmi Agarwalla, Rambha Pathak, Mitasha Singh, Farzana Islam, Mamta Parashar
Background: Ragpickers are informal workers who collect recyclable materials to earn a small wage on daily basis. They work in vulnerable conditions and awareness regarding occupational and environmental hazard is essential for them. Objective: To study the effectiveness of awareness program on various occupational health hazards among the ragpickers. Materials and Methods: This interventional study was conducted from May through October 2016 among the ragpickers living near field practice area of Department of Community Medicine and those living in slum areas around HAHC Hospital, New Delhi, India...
May 2017: Indian Journal of Occupational and Environmental Medicine
Anna-Katharina Buchberger, Denise Brettschneider, Kristin Berg, Dirk Jungmann, Jörg Oehlmann, Marco Scheurer, Matthias Oetken
Aquatic organisms are impacted by various biotic and abiotic stressors such as current, inter- and intraspecific competition for food resources and habitat, neobiota as well as an increasing number of chemicals. The latter also include pharmaceuticals, which are increasingly being detected in surface waters due to their growing use. The aim of our study was to determine effect data for metoprolol as a model compound for beta-blockers under an environmentally realistic exposure scenario on aquatic invertebrates inhabiting lotic environments...
March 14, 2018: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
Yunsong Mu, Zhen Wang, Fengchang Wu, Buqing Zhong, Mingru Yang, Fuhong Sun, Chenglian Feng, Xiaowei Jin, Kenneth M Y Leung, John P Giesy
Metals can pose hazards to marine species and can adversely affect structures and functions of communities of marine species. However, little is known about how structural properties of metal atoms combined with current geographical and climatic conditions affect their toxic potencies. A mathematical model, based on quantitative structure-activity relationships and species sensitivity distributions (QSAR-SSD) was developed by use of acute toxicities of six metals (Cd, Cr, Cu, Hg, Ni, and Zn) to eight marine species and accessory environmental conditions...
March 14, 2018: Environmental Science & Technology
Pablo Iribarren Anacona, Josie Kinney, Marius Schaefer, Stephan Harrison, Ryan Wilson, Alexis Segovia, Bruno Mazzorana, Felipe Guerra, David Farías, John M Reynolds, Neil F Glasser
The environmental, socioeconomic and cultural significance of glaciers has motivated several countries to regulate activities on glaciers and glacierized surroundings. However, laws written to specifically protect mountain glaciers have only recently been considered within national political agendas. Glacier Protection Laws (GPLs) originate in countries where mining has damaged glaciers and have been adopted with the aim of protecting the cryosphere from harmful activities. Here, we analyze GPLs in Argentina (approved) and Chile (under discussion) to identify potential environmental conflicts arising from law restrictions and omissions...
March 13, 2018: Ambio
Clare Gilham, Christine Rake, John Hodgson, Andrew Darnton, Garry Burdett, James Peto Wild, Michelle Newton, Andrew G Nicholson, Leslie Davidson, Mike Shires, Tom Treasure, Julian Peto
Background: Occupational and environmental airborne asbestos concentrations are too low and variable for lifetime exposures to be estimated reliably, and building workers and occupants may suffer higher exposure when asbestos in older buildings is disturbed or removed. Mesothelioma risks from current asbestos exposures are therefore not known. Methods: We interviewed and measured asbestos levels in lung samples from 257 patients treated for pneumothorax and 262 with resected lung cancer, recruited in England and Wales...
March 9, 2018: International Journal of Epidemiology
Jacqueline Ho, Jhih-Shyang Shih, Lucija Muehlenbachs, Clayton Munnings, Alan Krupnick
Inactive oil and gas wells present an environmental hazard if not properly plugged. Upon drilling a well, operators are required to post a bond, which ensures both that the operator has an incentive to plug and abandon (P&A) at the end of the well's life, and that, if the state is left with the liability of managing "orphaned" wells, it can cover the cost of P&A. Using data from 13 state agencies on their expenditures to plug orphan wells, we provide new estimates of P&A costs in the United States and compare P&A costs to bonds...
March 13, 2018: Environmental Science & Technology
Muhammad Ishtiaq, Noor Jehan, Said Akbar Khan, Said Muhammad, Umar Saddique, Bushra Iftikhar, Zahidullah
This study was aimed to investigate the potential harmful element (PHE) concentrations in coal dust and evaluate the human risk assessment and health effects near coal mining areas. For this purpose, dust samples were collected near various coal mines in Cherat, Pakistan, and analyzed for the PHE concentrations. Determined PHE concentrations were evaluated for the health risk assessment. Results revealed that ingestion was the major pathway as compared to others for PHE exposure. Individual chronic daily intake (CDI) of PHEs was higher than their respective permissible exposure limits set for oral exposure routes by the Agency for Toxic Substances and Disease Registry (ATSDR)...
March 12, 2018: Environmental Science and Pollution Research International
John J Sim, Hui Zhou, Jiaxiao Shi, Sally F Shaw, Shayna L Henry, Csaba P Kovesdy, Kamyar Kalantar-Zadeh, Steven J Jacobsen
PURPOSE: The early period after chronic kidney disease (CKD) patients transition to end-stage renal disease (ESRD) represents the highest mortality risk but is variable among different patient populations and clinical circumstances. We compared early mortality outcomes among a diverse CKD population that transitioned to ESRD. METHODS: A retrospective cohort study (1/1/2002 through 12/31/2013) of CKD patients (age ≥ 18 years) who transitioned to peritoneal dialysis (PD), hemodialysis (HD) with arteriovenous fistula/grafts, and HD with catheters was performed...
March 12, 2018: International Urology and Nephrology
Russell S Thomas, Richard S Paules, Anton Simeonov, Suzanne C Fitzpatrick, Kevin M Crofton, Warren M Casey, Donna L Mendrick
The traditional approaches to toxicity testing have posed multiple challenges for evaluating the safety of commercial chemicals, pesticides, food additives/contaminants, and medical products.The challenges include number of chemicals that need to be tested, time and resource intensive nature of traditional toxicity tests, and unexpected adverse effects that occur in pharmaceutical clinical trials despite the extensive toxicological testing.Over a decade ago, the U.S. Environmental Protection Agency (EPA), National Toxicology Program (NTP), National Center for Advancing Translational Sciences (NCATS), and the Food and Drug Administration (FDA) formed a federal consortium for "Toxicology in the 21st Century" (Tox21) with a focus on developing and evaluating in vitro high-throughput screening (HTS) methods for hazard identification and providing mechanistic insights...
March 8, 2018: ALTEX
Katie L Hill, Roger L Breton, Gillian E Manning, R Scott Teed, Marie Capdevielle, Brian Slezak
Triclosan is an antibacterial and antifungal chemical used in a variety of consumer products including soaps, detergents, moisturizers, and cosmetics. Aquatic ecosystems may be exposed to triclosan following the release of remaining residues in wastewater effluents and biosolids. In December of 2017, Environment and Climate Change Canada (ECCC) released a Federal Environmental Quality Guideline (FEQG) report that contained a Federal Water Quality Guideline (FWQG) for triclosan. This guideline will be used as an adjunct to the risk assessment and risk management of priority chemicals identified under the Government of Canada's Chemicals Management Plan (CMP)...
March 12, 2018: Integrated Environmental Assessment and Management
Xin Liu, Anzhou Ma, Guoqiang Zhuang, Xuliang Zhuang
Mercury can be a serious hazard to human health, especially in paddy soils surrounding mining areas. In this study, mercury (Hg)-methylating microbes with the potential biomarker gene hgcA were obtained from 45 paddy soil samples in mercury mining areas in Fenghuang, Wanshan, and Xunyang. In different areas, the abundance of the hgcA gene was affected by different environmental factors, including organic matter, pH, total carbon content, total nitrogen content, and total mercury content. Phylogenetic analysis showed that hgcA microbes in paddy soils were potentially members of the phyla Proteobacteria, Euryarchaeota, Chloroflexi, and two unnamed groups...
March 12, 2018: MicrobiologyOpen
Xuejun Sun, Qianggong Zhang, Shichang Kang, Junming Guo, Xiaofei Li, Zhengliang Yu, Guoshuai Zhang, Dongmei Qu, Jie Huang, Zhiyuan Cong, Guangjian Wu
Glacierized mountain environments can preserve and release mercury (Hg) and play an important role in regional Hg biogeochemical cycling. However, the behavior of Hg in glacierized mountain environments and its environmental risks remain poorly constrained. In this research, glacier meltwater, runoff and wetland water were sampled in Zhadang-Qugaqie basin (ZQB), a typical glacierized mountain environment in the inland Tibetan Plateau, to investigate Hg distribution and its relevance to environmental risks. The total mercury (THg) concentrations ranged from 0...
March 8, 2018: Science of the Total Environment
Johanna R Rochester, Ashley L Bolden, Carol F Kwiatkowski
BACKGROUND: Attention-deficit hyperactivity disorder (ADHD) has increased in prevalence in the past decade. Studies attempting to identify a specific genetic component have not been able to account for much of the heritability of ADHD, indicating there may be gene-environment interactions underlying the disorder, including early exposure to environmental chemicals. Based on several relevant studies, we chose to examine bisphenol A (BPA) as a possible contributor to ADHD in humans. BPA is a widespread environmental chemical that has been shown to disrupt neurodevelopment in rodents and humans...
March 3, 2018: Environment International
Haley Reis, Cesar Reis, Akbar Sharip, Wenes Reis, Yong Zhao, Ryan Sinclair, Lawrence Beeson
Exposure to diesel exhaust (DE) from vehicles and industry is hazardous and affects proper function of organ systems. DE can interfere with normal physiology after acute and chronic exposure to particulate matter (PM). Exposure leads to potential systemic disease processes in the central nervous, visual, hematopoietic, respiratory, cardiovascular, and renal systems. In this review, we give an overview of the epidemiological evidence supporting the harmful effects of diesel exhaust, and the numerous animal studies conducted to investigate the specific pathophysiological mechanisms behind DE exposure...
March 7, 2018: Environment International
Michael Hagenlocher, Fabrice G Renaud, Susanne Haas, Zita Sebesvari
Coastal river deltas are hotspots of global change impacts. Sustainable delta futures are increasingly threatened due to rising hazard exposure combined with high vulnerabilities of deltaic social-ecological systems. While the need for integrated multi-hazard approaches has been clearly articulated, studies on vulnerability and risk in deltas either focus on local case studies or single hazards and do not apply a social-ecological systems perspective. As a result, vulnerabilities and risks in areas with strong social and ecological coupling, such as coastal deltas, are not fully understood and the identification of risk reduction and adaptation strategies are often based on incomplete assumptions...
March 7, 2018: Science of the Total Environment
Yi-Lung Chen, Han-Yi Fu, Tzong-Huei Lee, Chao-Jen Shih, Lina Huang, Yu-Sheng Wang, Wael Ismail, Yin-Ru Chiang
The environmental release and fate of estrogens are becoming an increasing public concern. Bacterial degradation has been considered the main process for eliminating estrogens from wastewater treatment plants. Various bacterial isolates are reportedly capable of aerobic estrogen degradation and several estrogen degradation pathways have been proposed in the proteobacteria and actinobacteria. However, the ecophysiological relevance of estrogen-degrading bacteria in the environment is unclear. In this study, we investigated estrogen degradation pathway and corresponding degraders in activated sludge collected from the Dihua Sewage Treatment Plant, Taipei, Taiwan...
March 9, 2018: Applied and Environmental Microbiology
Anna-Sara Claeson, Eva Palmquist, Steven Nordin
BACKGROUND: Individuals with environmental intolerance (EI) react to exposure from different environmental sources at levels tolerated by most people and that are below established toxicological and hazardous thresholds. The main aim of this study was to determine the prevalence of attributing symptoms to chemical and physical sources in the environment among individuals with different forms of self-reported EI and in referents. METHODS: Cross-sectional data from a population-based study, the Västerbotten Environmental Health Study (n = 3406), were used and individuals with self-reported EI to chemicals, buildings, electromagnetic fields and sounds as well as a group with multiple EIs were identified...
March 6, 2018: International Journal of Hygiene and Environmental Health
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